Twin strainer.



WILIIM D. DE LAMARTER, 'OF ELIZABETH, NEW JRSEY, ASSIGNOR T0 ELLITT COMPANY, OF IPITTSBURGKH, PENNSYLVANIA, A CORPORATION 0F PENNSYL- vaina.

' TWIN STRAINER.

Aprmenient in rl`win Strainers, of Vwhich the ilallowinzgr is a full, clear, and exact description. reference being had to the accompanying drawings. forming part of this speciii cation. f v

My invention hasrelation to multiple, or

twin, strainers; and is designed to provide ing screws 8.

a strainer of this type of improved construction, also to provide a strainer of this type having a novel arrangement of valve and valve operating means whereby eitherl side of the twin strainer may be closed otl without interiferingji with the `voperation of the other side.`

The natureA of my invention will be best understood by reference to the accompanying drawings, in which I have shown a pre ferred embodiment thereof, and which will now be described, it beingprernised, however` that-various changes can be made in the details of'constru'ction and arrangement of the parts without departing from the spirit and scope of my invention as defined in the appended claims.

Figure 1 of the drawing isa side elevation of a. strainer embodying my invention.

Fig'. 2 is a vertical section of the saine, and l Fig. 3 is a top plan view with the cap plate removed. A* l ,i

ln these drawings, the numeral 2 designatos the casing of the strainer, which is divided interiorly to form two sirnilar strainer i chambers 3 and 4. Placed in each` of these chambers is a foraminated filter cage or' basket of any suitable character,- one of these being shown at 5 in Fig. 2. These cages or,

baskets are removablyseated in their respective chambers, each of the latter having an opening in its, side Wall through which the basket may be inserted and reinoveiil.- These openings are normally closed by the doors 6 which are removably held in lplace by the pivoted clamp bars'or straps 7 and clamp- 9 is a top cap plate, which is removably secured to the upper end of the casing, and 10 is a bottom cap plate which is secured to the lower end of the casing. The plate 9 has a water inlet connection at 11, while the top plate 10 has an outlet' connection 12, ,In

Specification of Letters Patent.

atented June 13', 1h16.

Appli-catoniled .T une 17, 19.13. SerialiNo. 774,108.

.chamber 16 by similar ports one of which is,A

shown at 19 in Fig. 2. v

2O designatesa vertical shaft, which is fjouriialed in suitable bearings 21 on the exterior of the casing. For conveniencev of construction, this shaftV is shown as formed in two sections, the adjacent ends ofthe sections being squared as indicated at 2'2 and united by the hub -portion 23 of an actuating lever or handle 2l. This,.l iowever, is a detail construction. which is immaterial to my invention. VEach end portion of the shaft extends through a suitable stuiiing box or packing 25 into one side of the re spectivc chambers 15 and 16, and carries within said chambers the crank arms 26 and 27. 28 is an inlet valve seated in the chambei' 15 and arranged tocontrol the ports 17 and 18. Q9 isa similar valve seated in the chamber 16 and arranged to control the outlet ports 19. Each or" these valves has a short stud or stem member 30, which en ages an opening in the crank arm 26 or 2 whereby the valve` will be moved with said arm. spring 31 is interposed between each. arm and its corresponding valve in orde to hold the latter against its seat.

The operation will be readily iinderstood. With the parts in the position shown-the two valves are in position to close the ports if 18 and 19 of the iilter chamber 3, while pering the valves to a position 'Where they will close the ports 1'? and 18 of the filter chamber Il.

It will be noted .that the doors 6 are setat an oblique angle to each other and to the general vertical plane of the strainer, thus giving ample roornbetvveen them for the port. leading `.movement of the lever 24 and to permit Vthe `filter cages or basket to be removed through ythe doors Without interference (with. the

I as to "give thejvalves 28 and 29 'the intermed1ate position which A will permit both yilter chambers to be operated simultaneously. In` fact,this is possible in the con struction shown,by leavingthese valves in the intermediate position.

What I claimistl'. 4A twin :filter having two filter chambers, an'admission port communicating with one end of each of said chambers, an routlet from the opposite endy of each of's'aid chambers, a valve member orcon trolling thefinlet end oboth of the chambers, a valve mem-ber for controlling the outlet end Loffboth ofsaid chambers, and'actuat- ,ing mechanism' connected to said valve members and arranged tof'simultaneosulyshift both of said valve members to-'imcoverthe ends of one i-ilter chamber when covering chamber.

and ,an actuating handle the ends of the other filter chamber, the arrangement being such thatthe iow through substantially as described.

2. A'twin filter or strainer having substantially parallel filter into an admission chamber at one end and into yan outlet chamber at the other end, an inlet connection leading to the admission chamber', an outlet connection leading from the'outlet chamber, a pivoted shiftable valve in'each of the admission and outlet chambers, a crankmemberextending into each chamberr and' having an actuating connection therein withY each valve', bearings on the exterior of* the filter for said crank members,

forming a connection between the two crank members, whereby the two valves are simultaneously shifted to uncover both ends of one chamber when covering the vends of the other chamber, the arrangement being such that the flow `through the strainer as a whole is uninterrupted, substantially'as described.

rIn testimony whereof I have hereunto set `my hand.

'WILLIAM D. LAMARTR.

' Witnesses:

'HARRY L. DUNCAN. JEssIEfB. KAY.

chambers, opening 'the strainer as a whole is uninterrupted, 

